000 00250nam a2200109Ia 4500
008 220201s9999 xx 000 0 eng d
100 _aJAIN (VIBHA)
245 0 _aAPPLIED PHYSICS
250 _a2ND
260 _bDELHI, DHANPAT RAI & CO.
942 _2ddc
999 _c99378
_d99378